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Hybrid multiple access apparatus and method in a mobile communication system

Active Publication Date: 2007-12-20
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0032] An aspect of the present invention is to address at least the problems and / or disadvantages and to provide at least the advantages described below. Accordingly, an aspect of the present invention is to provide an apparatus and method for transmitting / receiving data such that services with different characteristics and requirements can be supported in a mobile communication system supporting a hybrid multiple access scheme.

Problems solved by technology

For example, CDMA suffers from interference between signals from MSs because the signals are not orthogonal.
In this context, OFDMA is suitable for high-speed packet transmission, but not viable for voice communications or frequent transmissions of real-time small packet data.
Accordingly, it will be inefficient to support all services with different properties and requirements with one multiple access scheme.

Method used

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Embodiment Construction

[0062] The matters defined in the description such as a detailed construction and elements are provided to assist in a comprehensive understanding of preferred embodiments of the invention. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

[0063] The present invention provides hybrid use of a CDMA multiple access scheme and an orthogonal multiple access scheme in a communication system. That is, the communication system operates in a combination of CDMA and OFDMA, TDMA or SC-FDMA. Hereinafter, the orthogonal multiple access scheme refers to any of OFDMA, FDMA, and SC-FDMA. A combination of multiple access schemes will be referred to as a hybrid multiple access scheme. “CDMA transmission” is a same frequency at the same time...

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Abstract

A hybrid multiple access apparatus and method in a mobile communication system supporting various multiple access schemes are provided, in which an initial service negotiation is performed in a non-orthogonal transmission scheme between an MS and a BS, the BS receives from the MS an orthogonal resource request for high-speed packet data transmission, and the BS allocates orthogonal resources to the MS based on channel estimation information indicating a channel status between the MS and the BS.

Description

PRIORITY [0001] This application claims the benefit under 35 U.S.C. § 119(a) of a Korean Patent Application filed in the Korean Intellectual Property Office on Jan. 27, 2006 and assigned Serial No. 2006-9157, the entire disclosure of which is hereby incorporated by reference. BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention generally relates to a multiple access apparatus and method in a mobile communication system. More particularly, the present invention relates to a multiple access apparatus and method in a mobile communication system supporting a variety of multiple access schemes. [0004] 2. Description of the Related Art [0005] Typically, mobile communication systems provide communication service to a large number of users irrespective of time and place. The mobile communication systems provide access to users in various multiple access schemes. [0006] Two principal types of multiple access schemes used in mobile communication systems ar...

Claims

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Application Information

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IPC IPC(8): H04B7/216
CPCH04L27/2601H04B1/707A61H5/00G02C11/04F21L4/027F21Y2115/10
Inventor KWON, HWAN-JOONKIM, DONG-HEEHAN, JIN-KYUKIM, YU-CHUL
Owner SAMSUNG ELECTRONICS CO LTD